Rong Zhou insider trades
Open-market stock purchases and sales by Rong Zhou, SENIOR EVP, PRODUCTION CENTER at Amphastar Pharmaceuticals, Inc, from SEC Form 4 filings since Jun 15, 2015.
Recent trades
| Date | Stock | Trade | Value |
|---|---|---|---|
| Sep 16, 2026 | AMPH Amphastar Pharmaceuticals, Inc | Sold | $239K |
| Sep 16, 2026 | AMPH Amphastar Pharmaceuticals, Inc | Bought (not open market) | — |
| Sep 2, 2026 | AMPH Amphastar Pharmaceuticals, Inc | Sold | $75.3K |
| Mar 15, 2026 | AMPH Amphastar Pharmaceuticals, Inc | Sold (not open market) | $22.3K |
| Mar 10, 2026 | AMPH Amphastar Pharmaceuticals, Inc | Sold (not open market) | $41.9K |
| Mar 9, 2026 | AMPH Amphastar Pharmaceuticals, Inc | Bought (not open market) | — |
| Mar 9, 2026 | AMPH Amphastar Pharmaceuticals, Inc | Bought (not open market) | — |
| Mar 6, 2026 | AMPH Amphastar Pharmaceuticals, Inc | Sold (not open market) | $26.2K |
| Mar 4, 2026 | AMPH Amphastar Pharmaceuticals, Inc | Sold (not open market) | $22.4K |
| Dec 17, 2025 | AMPH Amphastar Pharmaceuticals, Inc | Sold | $256K |
| Dec 17, 2025 | AMPH Amphastar Pharmaceuticals, Inc | Bought (not open market) | — |
Companies traded
- AMPH Amphastar Pharmaceuticals, Inc: 37 sales, last Sep 16, 2026